1. Lye concentration: the main factor affecting the mercerizing effect (1) After the cotton fiber is treated with different concentrations of caustic soda solution, the change of length and diameter: When the concentration is more than 8%, the diameter increases, and the length shortens to the maximum. (2) The shrinkage and dyeing strength of cotton…
What is mercerizing Cotton products (yarns, fabrics) are treated with concentrated caustic soda solution under tension, and then the caustic soda is washed away under tension. 1. The purpose of mercerizing 1. Increased gloss and brightness after mercerizing; 2. The adsorption capacity and chemical reaction capacity are enhanced, and the color yield of dyes is…
Before understanding flax fabrics, we need to understand some flax fibers. Flax is an annual herb, and the raw material for weaving flax cloth-flax fiber is extracted from the hemp stem of the flax plant after degumming, pressing, and hemp. The biggest feature of flax fiber is that it has excellent moisture absorption and moisture…
1. Solo spinning Solospun, also known as cable spinning, is to install a small grooved roller (division roller) in front of the traditional ring spinning front roller. The drafting strand acts on the small grooves of the SolospunTM roller. It is split into two to three (or even four) strands. Each strand is initially twisted…
1. Siro spinning Siro spinning is also known as double-twist spinning, domestically known as A/B yarn, and later officially named Siro spinning. Siro spinning adopts double roving feeding on the spinning frame. Two roving strands kept in parallel at a certain distance are drafted by rollers in the spinning drafting zone. Two small triangles are…
1. Ring spinning Ring spinning is the most commonly used spinning method on the market. Ring spinning means that the sliver or roving is drawn into the fiber sliver through the ring traveler rotation, the bobbin winding speed is faster than the traveler, and the cotton yarn is twisted into spun yarn, which is widely…
In the hot summer, the beautiful ladies put on beautiful flowing dresses. Both chiffon and hemp yarns are often used in women’s clothing fabrics, and they are also familiar to most female consumers. So what kind of fabric are hemp yarn and chiffon? What is the difference between the two? Linen yarn Hemp yarn is…
Identification of polyester-cotton yarn and polyester-viscose yarn Untwist the two yarns, and then look at the length of the single fiber; whether the polyester cotton yarn is polyester staple fiber or cotton fiber is usually cotton type, the cut length of polyester is 38mm, and cotton contains long-staple cotton. The length is 23mm~45mm. If the…
Identification of cotton yarn and rayon yarn 1. Cotton yarn will not emit sparks when it burns, while rayon yarn will emit sparks, and the burning speed is faster than cotton yarn. 2. Cotton yarn moistened with water, its strength will not decrease, while rayon yarn moistened with water, its strength greatly decreases, and the…
Discrimination of air-jet spinning and vortex spinning The air-jet yarn structure is divided into two parts: the core and the outer fiber. The yarn core is parallel and twisted. The structure is tight. The outer fiber is loose and irregularly wound outside the yarn core. Therefore, the air-jet yarn has a looser structure and a…
